Table.



J. WALLIN.

TABLE` APPLICATION FILED AUG. 7, 1913.

Patented May 26, 1914.

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UITED STATES PATENT OFFICE.-

JOSEPH WALLIN, OF ROCKFORCD, ILLINOIS, ASSIG'NOR OF ONE-HALF TO ALFRED CARLSON, OF ROCKFOBD, ILLINOIS.

TABLE.

To all 'whom t may concern:

Be it known that I, JOSEPH WALLIN, a citizen of the United States, residing at Rockford, inthe county of Winnebago and the State of Illinois, have invented certain new and useful Improvements in Tables, ot' which the following is a specication.

rllhis invention relates to extension tables and more particularly to those having drop legs for supporting the table extension.

The object of my invention is to provide a simple leg structure for the table extension sections and means for electing the raising and lowering of the legs automatically with the moving of the extension sections to their closed and extended positions.

In the accompanying drawings: Figure 1 is a vertical sectional view through a table embodying my improvements, as taken on the line of section 1-1 of Fig. 2, one of the table sections being extended. Fig. 2 is a plan sectional view taken on the line 22 of Fig. 1, the sections in a closed position. Fig. 3 is a fragmentary vertical section on the line 3 3 of Fig. 2, illustrating a section closed and its legs swung under the table. l is a vertical section taken on the line 4 4 of Fig. 2. Fig, 5 is a view of the extended end section of Fig. 1, showing the lirst movement of the parts when said section is commenced to be moved inward.

The table proper is of a construction common to extension tables, the various elements comprising a pedestal 5 supported by legs 6, the pedestal carrying a cross top board 7 to which is tixedly secured the center member of the extension slides 8, and to the side slides are connected the top sections 9 and 10.

Since the structure of the supporting legs and means for operating the same for each section are alike, I will describe that of but one section and apply like reference numerals to both sections.

Blocks 11 are secured to the under side ot the table tops and legs 12 are pivotally connected thereto, two adjacent legs being connected by a cross-bar 13. A bar 1l is secured to the under side or" a top section and extends beyond the joining of the sections. To the extended end of bar 14 an operable lever 15 is pivoted intermediate its ends and has a link 16 pivoted to one end, the link being pivotally connected at its opposite end Specification of Letters Patent.

Application filed August 7, 1918.

Patented May k26, 1914.

serial No. 783,55?.

leg being in an elongated slot 12a to allow certain lost movement of the link relative to the legs 12. A bell-crank lever 17 is pivoted to the opposite end of bar 14e, has one arm connected by a link 1S to the lever 15 adjacent the pivot thereof, and its longer arm 19 has a notched end adapted to engage the cross-bar 13, this arm serving as a strut to brace the legs and hold same in their upright position. A cam face 20 extends from one side of the top board 7 and the ree end of lever 15 is adapted to coperate therewith and with the upper face of said top board to effect the raising and lowering of the legs 12.

With the operable parts of the table in a position as shown in Fig. 1, to move the extended top section 10` to its closed position, the table leaves 10a will be removed and the top 10 will be moved toward the table center. Since the free end of lever 15, which is carried by this top section, rests in contact with cam face 20, this lever will be swung on its pivot and will raise the brace arm 19, through link 18, free from the cross-bar 13 as shown in Fig. 5, while the link 16 will be moved the extent of the slot l2a without moving the legs 12. Continuing the movement of the top to its closed position the lever 15 will operate both links 16 and 18 and thus raise the legs 12 and the brace arm 19 to a position under the table top, such as is illustrated in Fig. 3. It will be noticed that the raising of the legs is entirely automatic and that they are actuated by the closing movement of the extended top, there being no unlatching or moving of parts of the leg structure preparatory to this closing operation in order to rput the leg structure in condition for raising as is common in structures now in use, and that but a single lever actuates, causes to be raised, and holds the legs and brace arm in their raised and in their lowered set positions. Withoutdeparting from the scope of my invention deviations in the pivot points and connections between the brace arm, swinging legs and operating` means might be made to effect similar movements.

Upon moving the table top to its extended position the legs will be carried therewith in their raised position until the free end of the lever 15, which bears against the upper face of top board 7 is carried free .of the cam face 20, and being thus liberated will allow the legs to fall by their own weight to an upright position, and when in this position as shown in Fig. 1, the lever 15 will be swung into a limited Contact with the under face of cam 20, thus moving the brace arm 19 to engage its notched end with the cross-bar 13, the brace arm holding the legs xed Vfrom movement in the direction of raising, while suitable stops (not shown) may be contacted by the legs to prevent movement in the opposite direction.

I claim as my invention:

1. In an extension table, the combina-tion with slidable associated top sections, of a leg support connected to one of the sections and movable to a raised position, a brace member adapted to coperate with and brace the leg support when the leg is in an upright position, being movable to disengage from the leg support and operating means having connection with the leg support and brace member for moving successively first the brace member to eiect said disengagement and then the leg support to move same to its raised position.

2. In an extension table, the combination with slidable associated top sections, of a movable support for one of the sections, movable from a raised inoperative to a lowered operative position a brace member adapted to engage said support and brace it in said operative position, and an operable device having connection with the support and brace member and adapted when operated, to simultaneously move the support to an operative position and the brace member into engagement with said support.

3. In an extension table, the combination with slidable associated top sections, of a. movable support for one of the sections, movable from a lowered operative to a raised inoperative position a brace member adapted to engage said support and brace it in its said operative position, and operating means having a connection with the support and brace member and being operable through a common force for iirst disengaging the brace member from the support and then simultaneously moving the support and brace members to inoperative positions.

4. In an extension table, the combination with slidable associated top sections, of a swinging leg support connected to one of the sections, a device for swinging said leg support to a raised position automatically with movement of the sections together, means for holding the leg support against movement toward said raised position, and being movable Jfree from the support and a. connection between said means and said device whereby t-he device will operate said means to free same from the leg support when the device is operated to swing the leg support to its raised position.

5. In an extension table, the combination with a permanent support and slidable top sections associated therewith, of a support for one of the sections movable to a. raised position, a brace for said support and movable into and out of bracing position, operable means having connections with the support and brace, and being operable to move the brace out of said bracing position and the support to its raised position, a cam face carried by the permanent support and with which said operable means coperate when the top sections are moved together, whereby the cam will cause said means to be operated, and a lost motion connection included in one of said connections to allow the brace to move relative to the movable support when the said means are operated.

6. In an extension table the combination with a permanent support and slidable top sections associated therewith, of a cam face carried by the permanentsupport, an operable member carried by one of the to-p sections and movable over said cam face by moving the top sections together, a movable support connected to one of the top sect-ions, a connection between said member and the movable support whereby the member when moved over said cam face will raise the movable support to an inoperative position, brace means engageable with said movable support to hold same against said raising movement, and a connection between said brace means and operable member whereby the brace means will be raised to an inoperative position by the operable member.

7. In an extension table, the combination with a permanent support and slidable top sections associated therewith, of a support pivoted to one of the sections, a brace pivoted to this section and adapted to engage the support, a lever pivoted to this section, a separate link connection between the lever and the support and brace, and a cam face carried by the support with which said lever will coperate when the top sections are moved together, the cam tace causing the lever to swing said support and brace, through their separate connections, to inoperative positions.

8. In an extension table, the combination with slidable associated top sections, a swinging support for one of the sections movable to a raised inoperative position, a brace-bar independent of the swinging support and being movable into and out of bracing contact with same, and an operable levezl having independent connections with said support and brace-bar, the operation of the lever causing said connections to move the brace-bar out of said bracing contact with the support and to move the support to its inoperative position.

9. In an extension table, the combination with slidable associated top sections, a swinging support for one of the sections movable to a raised inoperative position, a brace-bar movable into and out of bracing contact with the swinging support, an operable lever having independent connections with said support and brace-bar, one of said connections having a lost motion connection, the operation of the lever being to move the brace-bar out of said bracing contact with the support and to move the support to its inoperative position, the former operation being accomplished before the latter through the means of said lost motion of one of the lever connections.

10. In an extension table, the combination with a permanent support and slidable top sections associated therewith, a swinging support for one of the sections movable to a raised inoperative position, a brace-bar forming a connection between the support and a table member fixed relative thereto and the brace-bar being movable to an inoperative position out of said bracing position, and means for moving by operation of a single member the brace-bar and support to inoperative positions, said means being operated automatically through closing movement of the sections and moving first the brace-bar from its said bracing connection and then the brace-bar and support to inoperative positions.

11. In an extension table, the combination with a permanent support and slidable top sections associated therewith, a support for one of the sections pivoted thereto and being swingable to a raised position, a brace-bar pivoted to this section and being swingable into and out of bracing engagement with said support, a lever pivoted to this section, a separate connection between the lever and the support and brace-bar, the connection between the lever and the support having a lost movement, a cam on the permanent support by which said lever is operated upon closing movement of the sections, such movement causing the lever to move the brace-bar from its said bracing engagement before moving the support, and then moving the support and brace-bar simultaneously to inoperative positions.

l2. In an extension table, the combination with a permanent support and slidable top sections associated therewith, a support for one of the sections pivoted thereto and being swingable to a raised position, a brace-bar pivoted to this section and being swingable into and out of bracing engagement with said support, a lever pivoted to this section, a separate connection between the lever and the support and brace-bar, the connection between the lever and support having a lost movement, a cam on the permanent support by which said lever is operated upon closing movement of the sections, such movement causing the lever to move the brace-bar from its said bracing engagement and then move the support to its inoperative position, the breaking of said bracing engagement before the support movement being permitted by the said lost motion connection.

13. In an extension table, the combination with slidable top sections, of a supporting leg pivoted to one of the sections and being swingable to a raised position, a brace member pivoted intermediate its ends to this section and one end being swingable into and out of bracing engagement with the supporting leg, an operable lever pivoted to this section and having separate connecting links to the supporting leg and to the brace member on the lever end opposite its support en gagement, the link connections on the lever being at diiferent distances from the lever pivot to eifect differ-ent degrees of swinging operation of the support and brace, operation of the lever being to swing the support and brace on their pivots to inoperative positions.

14. In an extension table, the combination with slidable top sections, of a supporting leg pivoted to one of the sections and being swingable to a raised position, a brace member pivoted to this section and being swing able into and out of bracing engagement with the supporting leg, an operable lever pivoted to this section and having separate connecting links to the supporting leg and to the brace member, said links being connected to their respective members in such manner that pivoting movement of the lever will swing the brace and support through arcs of different degrees to their inoperative positions, and means for so operating the lever,

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOSEPH WALLIN. Witnesses JOHN F. MCCANNA, J r., E. D. E. N. BEHEL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

